An integrated control plane and data plane is not an advantage of Software-Defined Networks (SDN) over traditional networks. In fact, one of the main features of SDN is the separation of the control plane and data plane, which allows for centralized control and greater flexibility. Traditional networks typically have an integrated control plane and data plane, which can make them less flexible and harder to manage. Therefore, the correct answer is the integrated control plane and data plane, as it does not align with the advantages brought by SDN.